The O-Ring, cataloged under National Stock Number 5331-00-968-1862, is classified within Federal Supply Class 5331 (O-ring) of the Hardware and Abrasives group. The manufacturer of record is Sae International Dba Sae International. Government technical data includes 5 specifications, cited from the U.S. Government catalog. The record lists 3 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 7 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5331-00-968-1862 |
| Primary Part Number | AS3578-425 |
| Item Name | O-Ring |
| FSC / FSG | 5331 / 53 — O-ring |
| Manufacturer | Sae International Dba Sae International |
| Status | ACTIVE |
| Cross-Sectional Height | 0.269 INCHES MINIMUM AND 0.281 INCHES MAXIMUM IN |
| Outside Diameter | 4.980 INCHES MINIMUM AND 5.070 INCHES MAXIMUM IN |
| Hardness Rating | 65.0 SHORE DUROMETER A NOMINAL |
| Center Hole Diameter | 4.460 INCHES MINIMUM AND 4.490 INCHES MAXIMUM IN |
| Material | RUBBER BUTADIENE-ACRYLONITRILE CLASS NBR |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| N0506 2-425 | Parker-Hannifin Corp Div O-Ring Division (USA) |
| PRP568-425-4465-65 | Parco, Llc (USA) |
| AS3578-425 PRIMARY | Sae International Dba Sae International (USA) |
| Reference | Meaning |
|---|---|
| MS9021-425ES | 5/9 Secondary reference Eriks B.v. |
| MS9021-425 | 5/9 Secondary reference U.S. Government activity |
| 2-425 N506-65 | 5/9 Secondary reference Parker-Hannifin Corp Div O-Ring Division |
| AS3578-425 | 3/9 Design control — primary reference U.S. Government activity |
| PRP568-425-4024-65 | 5/9 Secondary reference Parco, Llc |
| 2-425 N506-65 | 5/9 Secondary reference Parker Hannifin Gmbh O-Ring Division |
| SAE-AS3578 | 3/1 Design control — primary reference Sae International Dba Sae International |
NSN 5331-00-968-1862 is a O-Ring, manufactured by Sae International Dba Sae International, classified under FSC 5331, O-ring. Status: active.
NSN 5331-00-968-1862 has 3 manufacturer part numbers on file: N0506 2-425 (Parker-Hannifin Corp Div O-Ring Division), PRP568-425-4465-65 (Parco, Llc), AS3578-425 (Sae International Dba Sae International).
Key specifications for AS3578-425: Cross-Sectional Height: 0.269 INCHES MINIMUM AND 0.281 INCHES MAXIMUM IN; Outside Diameter: 4.980 INCHES MINIMUM AND 5.070 INCHES MAXIMUM IN; Hardness Rating: 65.0 SHORE DUROMETER A NOMINAL; Center Hole Diameter: 4.460 INCHES MINIMUM AND 4.490 INCHES MAXIMUM IN. 5 specifications are documented in the U.S. Government catalog.
No hazard code in the DLA record (HMIC N). Hazard information on this page is shown exactly as it appears in the DLA record.
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-16.
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.